June 9th, 2022 Welcome IT Press Tour

| 2 © 2022 Quantum Corporation Leader in Solutions for Video and Unstructured Data Jamie Lerner, Chairman and CEO Our Difference is in Our Software Brian “Beepy” Pawlowski, Chief Development Officer Eric Bassier, Senior Director of Product Marketing Product Showcase Englewood Facility Tour Bruno Hald, GM Secondary Storage Happy Hour and Social Time Dinner at Parker Garage at 7 PM Agenda Jamie Lerner Chairman & CEO Brian Pawlowski Chief Development Officer Bruno Hald GM, Secondary Storage Eric Bassier Sr. Director, Product Marketing

| 3 © 2022 Quantum Corporation Source: IDC Datasphere A Fundamental Shift in the Role of Data Mostly video and images 90% of all data is unstructured Driving digital transformation

| 4 © 2022 Quantum Corporation Transforming Through Series of Acquisitions and Accelerated Pace of Innovation 2019 2020 2021 2022 F‐Series NVMe Storage ActiveScale Object Storage #1 share in hyperscale cold storage Squarebox Systems makers of CatDV StorNext 7 on H‐Series; virtualized and cloud ready First and only object store with cold storage Pivot3 surveillance business EnCloudEn HCI Software startup Unified Surveillance Platform Accelerated Pace of Innovation Strategic Acquisitions Atavium Data Classification

| 5 © 2022 Quantum Corporation Yesterday Today Cloud‐based Analytics Software Object Storage Software File System HCI Software for Surveillance Workloads Backup Appliances Asset Mgmt & Orchestration Software Tape Storage Online Service Delivery Platform Block Storage Software File System Backup Appliances Tape Storage

| 6 © 2022 Quantum Corporation Leader in Hyperscale Storage Archives 5 of Top 5 hyperscalers in production 5 of Top 5 hyperscalers in production ~40 Exabytes deployed globally ~40 Exabytes deployed globally 3M+ LTO Tapes under management 3M+ LTO Tapes under management Quantum has partnered with the world’s largest cloud providers to build Exabyte‐scale storage clouds deployed in hyperscale data centers across the globe.

| 7 © 2022 Quantum Corporation Yesterday Today Ships ready to run in a single appliance StorNext shipped in 100 boxes, Required multiple servers on a SAN

| 8 © 2022 Quantum Corporation Yesterday Today F‐Series and H‐Series QXS Third‐Party Disk

| 9 © 2022 Quantum Corporation Yesterday Today Multiple management tools and GUIs Complete management GUIs, performance monitoring, on premise and in cloud

| 10 © 2022 Quantum Corporation Yesterday Today Seven different sign‐ons to interact with Quantum support Single Sign‐On with MyQuantum SDP

| 11 © 2022 Quantum Corporation Yesterday Today Hybrid Cloud Data Management On Prem Data Storage Do All This From The Cloud For Work‐From‐Anywhere Experience Public Cloud Data Storage Data Enrichment Asset Management Integrate Workflows On Prem Data Storage

| 12 © 2022 Quantum Corporation We Have Built the Portfolio Object Storage ActiveScale File System Software StorNext Surveillance Platforms USP, Smart NVRs Backup Appliances DXi Series Asset and Workflow Orchestration Software CatDV Software to index, analyze, enrich video and image data Software to index, analyze, enrich video and image data Primary storage systems for high speed data ingest and capture Primary storage systems for high speed data ingest and capture Secondary storage systems for large scale data storage, data and cyber protection, active and deep archives. Secondary storage systems for large scale data storage, data and cyber protection, active and deep archives. Tape Storage Scalar Series AIOps Software Cloud‐Based Analytics Service Delivery Platform MyQuantum Support and Services Deployment Education Consultancy Customer Success Quantum‐as‐a‐Service

| 13 © 2022 Quantum Corporation We Have Transformed the Business FROM FROM TO TO TAM Expansion Product Strategy License Model Customer Focus Point products End‐to‐End Solutions Growth via accelerated pace of innovation, strategic acquisitions One‐time hardware sales Recurring Software and Services Storing data Storing, Protecting, Managing, Enriching Data Leadership in specific markets

| 14 © 2022 Quantum Corporation Video Surveillance Data Video Surveillance Data Rich Media Content Rich Media Content Hyperscale and Exabyte‐Scale Data Archives Hyperscale and Exabyte‐Scale Data Archives 5 of 5 Largest U.S. Broadcasters The Largest Streaming Services The Largest Media Companies The Most Watched TV Channels The Biggest Sports Leagues 13 of 30 MLB Teams 15 of 32 NFL Teams 100+ University Athletic Depts 5 of 5 Biggest Global Hyperscalers 17 of 17 U.S. Intelligence Agencies 14 of 17 U.S. National Labs U.S. and International Space Agencies Leading Research Institutions Across the Globe 4 of 5 Largest U.S. Public Transit Systems 6 of Top 10 Hotel, Casino, and Resort Companies 7 of the Largest Federal Agencies 10 of the World’s High‐volume Airports Leader in Solutions for Video and Unstructured Data NI H

Our Difference is In Our Software Brian “Beepy” Pawlowski Chief Development Officer Eric Bassier Sr Director, Product Marketing

| 16 © 2022 Quantum Corporation • Managing big unstructured data remains an UNSOLVED CHALLENGE • Our goal is to MAKE EVERYTHING EASY • We are INNOVATING at a rapid pace • Our difference is in OUR SOFTWARE Summary

| 17 © 2022 Quantum Corporation Managing Unstructured Data Remains an Unsolved Challenge Opportunity Organizations do not store data on primary storage for the amount of time they would like to say they keep it on high-cost storage too long 88% 89% 78% 56% say retaining more data longer is an avenue to greater business value creation say more automated tiering could save them substantial money

| 18 © 2022 Quantum Corporation Data Is Mobile DATA IS CREATED, ANALYZED, CAPTURED DATA IS CREATED, ANALYZED, CAPTURED 1 DATA IS CATALOGED, WORKED ON, ANALYZED, DISTRIBUTED DATA IS CATALOGED, WORKED ON, ANALYZED, DISTRIBUTED 2 DATA IS PRESERVED AND PROTECTED FOREVER DATA IS PRESERVED AND PROTECTED FOREVER 3 WHAT MATTERS Speed for ingest and processing Enable collaboration (catalog, classify, tag) Orchestrate data movement WHAT MATTERS Massive scale Cost‐effectively store and protect for decades Access and re‐use Cyber‐resilience Editors, Analysts, Scientists, Doctors, Researchers

| 19 © 2022 Quantum Corporation BUY BUY EASY TO EASY TO Core Challenge

| 20 © 2022 Quantum Corporation Your difference is in your data. Our difference is in our software.

| 21 © 2022 Quantum Corporation Our Difference is in our Software Object Storage Software ActiveScale File and Block Software StorNext, Q BSP HCI Software for Surveillance USP Deduplication Software DXi Series Asset and Workflow Orchestration Software CatDV Software to index, analyze, enrich video and image data Software to index, analyze, enrich video and image data Primary storage systems for high speed data ingest and capture Primary storage systems for high speed data ingest and capture Secondary storage systems for large scale data storage, data and cyber protection, active and deep archives. Secondary storage systems for large scale data storage, data and cyber protection, active and deep archives. Tape Storage Scalar Series AIOps Software Cloud‐Based Analytics Service Delivery Platform MyQuantum Support and Services Deployment Education Consultancy Customer Success Quantum‐as‐a‐Service

| 22 © 2022 Quantum Corporation Content Discovery with Quantum CatDV and NVIDIA AI Tools Index Your Content Audio to Text Upscaling

| 23 © 2022 Quantum Corporation StorNext Offers the Best Streaming Performance; Now Virtualized and Cloud Ready StorNext File System New Software‐Defined Architecture Dedicated Metadata Controllers QXS Block Storage StorNext VM; File and Data Services H4000 Series Appliances Converged Server and Storage Traditional Architecture Hypervisor QTM Block Software VM Software abstracted from hardware File services, data services, and block services run in VMs and containers on a single software‐defined platform. 2 1 StorNext is now virtualized and containerized. StorNext 7 has been virtualized, and major architectural components such as the management layer and APIs have been containerized in a Docker environment, enabling easy upgrades and fast delivery of new features and capabilities.

| 24 © 2022 Quantum Corporation Quantum QBSP 2.0 Delivers Unified UI, Common Platform Across F‐Series and H‐Series

| 25 © 2022 Quantum Corporation Introducing The Quantum H4000 Essential Asset Management and Collaborative Storage Built for Small, Independent Creative Teams • CatDV + StorNext 7 on H4000 Platform • Highly available shared storage, plus content indexing, discovery, workflow collaboration • Starting at under $40,000 + (VVHQW L DO

| 26 © 2022 Quantum Corporation Unified Surveillance Platform (USP) Software Simplifies Video Recording Infrastructure Unified Surveillance Platform Software Smart NVRs Unified Server and Storage Cluster VMS PSIM Access Control VMS PSIM Access Control Consolidate many NVRs and other applications onto a single ‘unified’ platform First‐and‐only NVR that can run multiple applications. Consolidates multiple NVRs to a single “smart” NVR server.

| 27 © 2022 Quantum Corporation First and Only Object Storage Software That Can Run on Disk and Tape Single namespace across disk and tape Up to 1Mx Better Data Durability Through 2D Erasure Coding Restore objects from a single tape Up to 40% Better Storage Efficiency Vs Multi‐Copy Approaches Overhead as low as 15% is possible Scale to Exabytes and Billions of Objects Available as‐a‐Service with no Data Access Fees Up to 80% Less Expensive than competing object stores S3-Enabled Apps and Workflows S3 Standard S3 Glacier Lifecycle Policies

| 28 © 2022 Quantum Corporation Fully Functional DXi V5000 Can Be Downloaded and Installed in Minutes

| 29 © 2022 Quantum Corporation Introducing the Scalar i6H A tape storage system designed for hyperscale and Exabyte‐scale archive environments • Ideally suited for large scale archives as part of a RAIL architecture • Best‐in‐class storage density to minimize data center footprint • Easy to service; Everything customer‐ replaceable • Highly efficient, green design w 80 PLUS certified power supplies • Full suite of Scalar Security Framework features, including Ransom Block

| 30 © 2022 Quantum Corporation Services Technology to Deliver a Better Customer Experience MyQuantum Service Delivery Platform Summarizes account activity and system statistics, portal for requesting additional capacity and more Quantum Cloud‐Based Analytics (CBA) AIOps software that captures telemetry data, monitors systems, uses predictive analytics for system maintenance

| 31 © 2022 Quantum Corporation Quantum Cloud‐Based Analytics (CBA) AIOps software that captures telemetry data, monitors systems, uses predictive analytics for system maintenance Easy to Use with a Consistent User Experience Across Platforms

Building End to End Solutions Eric Bassier Senior Director, Product Marketing

| 33 © 2022 Quantum Corporation Video for Entertainment and Communications Ingest Editors, Colorists, Reviewers, VFX and CGI Render, Analytics Ingest and edit high‐res content with fastest streaming performance Spend more time creating, less time managing content Find new ways to access, protect, and monetize your archived content Asset Management and Workflow Orchestration Asset Management and Workflow Orchestration High Speed, Highly Available Collaborative Shared Storage High Speed, Highly Available Collaborative Shared Storage Large Scale, Cyber‐Resilient Content Archiving Large Scale, Cyber‐Resilient Content Archiving

| 34 © 2022 Quantum Corporation Solutions for Video Surveillance Recording and Retention Object Storage Large scale active archives Security Personnel Tape Storage Low cost, cyber‐resilient Unified Surveillance Platform Public Cloud Storage Consolidate and simplify video recording infrastructure on a highly resilient platform Capture 100’s to 1000’s of high‐ res camera feeds 24x7 without frame loss Address long term retention requirements at the lowest cost File System used as gateway to archive storage Smart NVRs for edge deployments, video recording Smart NVRs for edge deployments, video recording Resilient unified server and storage platforms Resilient unified server and storage platforms Reliable, low‐cost storage for long term retention Reliable, low‐cost storage for long term retention

| 35 © 2022 Quantum Corporation Solutions for Managing and Archiving Unstructured Data Ingest Scientists and Researchers Object Storage Large scale active archives Tape Storage Low cost, cyber‐resilient Public Cloud Storage File System and Data Management Reduce infrastructure costs by 50%+ relative to alternative file and object solutions Use big unstructured data to advance digital transformation Preserve and protect big unstructured data for decades Scale‐out file and object storage systems Scale‐out file and object storage systems Data management across flash, disk, tape and cloud Data management across flash, disk, tape and cloud Exa‐scale, cyber‐resilient data archiving Exa‐scale, cyber‐resilient data archiving

| 36 © 2022 Quantum Corporation Solutions for Data and Cyber‐Protection AES‐256‐bit ActiveScale Object Storage with versioning and object locking DXi Backup Appliances High speed backup and replication with Secure Snapshots Scalar® Tape Storage Lowest cost, most‐secure tape storage for long term archiving and cyber‐resilient infrastructure

| 37 © 2022 Quantum Corporation “End to End” Solutions for Video and Unstructured Data Archive Research Data Manage Athletics Department Content Campus Surveillance Backup and Cyber‐Protection IT Department

| 38 © 2022 Quantum Corporation

| 39 © 2022 Quantum Corporation H4000 Essential All‐in‐one appliance for small creative teams Let’s Go Look at Some Products! Scalar i6 with Ransom Block Most secure tape storage; only solution that creates physical barrier

| 40 © 2022 Quantum Corporation Why Quantum Today’s companies, products and services are BUILT WITH DATA PROTECT AND ACCESS DATA EFFICIENTLY for years and decades UNLOCK MORE VALUE from your data to drive your business forward PRODUCE RESULTS, INSIGHTS, PRODUCTS FASTER WITH YOUR DATA Your difference is in your data.™